Kodi chubu cha Astm a269 n'chiyani?

Ndife opanga machubu a ASTM A249 coil osapanga dzimbiri, muyezo wake ndi ASTM A249 Coil, chubucho ndi chachizolowezi ndi ASTM A249. Pamwamba pake ndi kowala, kutalika kwake ndi 4000m/Coil, chubu cha coil ndi chofewa, chitha kugwiritsidwa ntchito popanga mafuta, kuyika mapaipi, zida.